#!/usr/bin/env bash

#
# The idea is that we emulate a hash using two methods
#
# The first method is providing functions by sourcing this file
#
# The second method is where this script is called directly,
# we then provide functionality of a file based hash
#

if [[ "$rvm_trace_flag" -eq 2 ]] ; then set -x ; export rvm_trace_flag ; fi

[[ -z "${ZSH_VERSION:-}" ]] ; array_start=$?

hash()
{
  hash_name=$1 ; hash_key=$2 ; hash_value=$3

  eval "_hash_${hash_name}_keys=\${_hash_${hash_name}_keys:-()} ; _hash_${hash_name}_values=\${_hash_${hash_name}_values:-()}"

  if [[ -z "$hash_value" ]] ; then
    eval "length=\${#_hash_${hash_name}_keys[@]}"
    for (( index=$__array_start ; index < $length; index++ )) ; do
      eval "key=\"\${_hash_${hash_name}_keys[$index]}\""
      if [[ "$hash_key" == "$key" ]] ; then
        eval "echo -n \${_hash_${hash_name}_values[$index]}"
        break
      fi
    done
  else
    eval "index=\$((\${#_hash_${hash_name}_keys[*]} + $__array_start))"
    eval "_hash_${hash_name}_keys[$index]=\"$hash_key\""
    eval "_hash_${hash_name}_values[$index]=\"$hash_value\""
  fi
}

